Traction Controll Completely Off?

Skeeterbop · 11-11-2011, 12:08 AM

Quote:

Originally Posted by zeecarr

I have found that VDC is still active, albeit at a reduced level, even when switched off. I have attempted a smoky burnout with it off, lit them up great about halfway through the intersection, and then bog city as nanny Nissan shuts down the power. This is a real thing, regardless of what the literature says.

I've had no issues getting it to spin the tires with vdc off. I would agree with the others, it's the ABLS you feel, not the VDC.

ChrisSlicks · 11-11-2011, 07:43 AM

Quote:

Originally Posted by Skeeterbop

I've had no issues getting it to spin the tires with vdc off. I would agree with the others, it's the ABLS you feel, not the VDC.

Correct. The ABLS kicks in when there is a large differential wheel speed either side to side or front to rear, so it will potentially kill your burnout. This is not VDC.

kenoverbey · 11-14-2011, 01:03 PM

Quote:

Originally Posted by B_Bear

Owner's Manual says that VDC OFF means exactly that, but ABLS and ABS are still active. Maybe folks are feeling ABLS kick in.

pg 5-27: "The VDC system uses an Active Brake Limited Slip (ABLS) function to improve vehicle traction. The ABLS system works when one of the driving wheels is spinning on a slippery surface. The ABLS system brakes the spinning wheel, which distributes the driving power to the other drive wheel. If the vehicle is operated with the VDC OFF switch pushed and the VDC system turned off, all VDC systems will be turned off. The ABLS system and ABS will still operate with the VDC system off. If the ABLS system is activated, the (slip) indicator (light) will blink..."

I think this is what people are experiencing....If you touch the brake under wheel spin it acts like the VDC.

KillerBee370 · 11-14-2011, 01:47 PM

Obviously the ABS is still active. That would be real interesting at the track if it wasn't since I never run with the VDC on! Haha can you imagine?!

Skeeterbop · 11-14-2011, 01:49 PM

It would definitely force you to learn threshold braking if that was the case.

wdkwang · 11-14-2011, 05:08 PM

When I wanted to do a burnout, I took out the brake lamp fuse to disable the brake override. Started the car and turned off the vdc. I don't know if it showed up before or after a burnout but the ABS light and some other light came on in the dash. I assume the ABS is disabled, maybe?
Turned off the car when I was done, put the fuse back in, turned it on again, and everything was back to normal

2011 Nismo#91 · 11-14-2011, 05:17 PM

It does not cut anything in mine. OFF is OFF. ON is ON. Though it would be nice to have something a bit in the middle.

Skeeterbop · 11-14-2011, 05:30 PM

Quote:

Originally Posted by wdkwang

When I wanted to do a burnout, I took out the brake lamp fuse to disable the brake override. Started the car and turned off the vdc. I don't know if it showed up before or after a burnout but the ABS light and some other light came on in the dash. I assume the ABS is disabled, maybe?
Turned off the car when I was done, put the fuse back in, turned it on again, and everything was back to normal

I would say this is the case. Correct me if I'm wrong, but if you pull a fuse w/e circuit it is for will be disabled until the fuse is plugged back in due to a break in the circuit.

///MSH · 11-14-2011, 10:39 PM

Hey guys. I'm somewhat unknown here since i haven't posted much, but I follow many of the threads. I found this thread when i became frustrated during an AutoX this past weekend. After having already exited a hard left hand corner, starting to get power down, high in the RPM's in 1st gear, the throttle response went completely dead...I'd say i coasted 2-3 car lengths, before any throttle response came back. This very much felt like a fuel shut off rather than any sort of ABS/ABLS intervention.
My fuel was half tankish, but everything i've read with regards to fuel starvation points to long-gradual RH Corners...not the case here.
On a second instance, the same lack of throttle response was noted, but this time with an audible fluttering sound....like intake charge was being dumped-off. I'm not saying this is the case, just trying to paint a picture of what the flutter sounded like.
In both instances, the power came back in about the time it took me to pump the pedal 3-4 times.
Here's a question...if the car was under a decent lateral load (instant G-force...not sustained) would the ECU shut off the fuel for safety reasons anticipating a crash/collision????
Oh yeah, this was not the rev limiter and yes i had the traction control turned off. And with the TC turned off, my car can get just about as loose as i want it to get.

ChrisSlicks · 11-15-2011, 08:20 AM

Quote:

Originally Posted by ///MSH

Hey guys. I'm somewhat unknown here since i haven't posted much, but I follow many of the threads. I found this thread when i became frustrated during an AutoX this past weekend. After having already exited a hard left hand corner, starting to get power down, high in the RPM's in 1st gear, the throttle response went completely dead...I'd say i coasted 2-3 car lengths, before any throttle response came back. This very much felt like a fuel shut off rather than any sort of ABS/ABLS intervention.
My fuel was half tankish, but everything i've read with regards to fuel starvation points to long-gradual RH Corners...not the case here.
On a second instance, the same lack of throttle response was noted, but this time with an audible fluttering sound....like intake charge was being dumped-off. I'm not saying this is the case, just trying to paint a picture of what the flutter sounded like.
In both instances, the power came back in about the time it took me to pump the pedal 3-4 times.
Here's a question...if the car was under a decent lateral load (instant G-force...not sustained) would the ECU shut off the fuel for safety reasons anticipating a crash/collision????
Oh yeah, this was not the rev limiter and yes i had the traction control turned off. And with the TC turned off, my car can get just about as loose as i want it to get.

It does sound like fuel starvation (the description matches what I experience). It can happen in either direction if the fuel level is low enough, I have to keep it at 3/4 or above for auto-x.

O&G · 11-15-2011, 11:01 AM

On my 350 I took the fuses out, but you will not have ABS anymore ....LOL! Have fun!

///MSH · 11-15-2011, 08:05 PM

Well I guess in the grand scheme of things, fuel starvation is not the end of the world...with a little weight penalty, the problem is gone.

Thanks for the input guys!

ChrisSlicks · 11-15-2011, 08:23 PM

Quote:

Originally Posted by ///MSH

Well I guess in the grand scheme of things, fuel starvation is not the end of the world...with a little weight penalty, the problem is gone.

Thanks for the input guys!

Yep, it is the burden that many of us carry. Fortunately at least the extra weight is in a good place for balance.

If you jump to the end of this thread you will see there is a solution in the works as well.
Fuel starvation, who else?

///MSH · 11-17-2011, 10:46 PM

Quote:

Originally Posted by ChrisSlicks

Yep, it is the burden that many of us carry. Fortunately at least the extra weight is in a good place for balance.

If you jump to the end of this thread you will see there is a solution in the works as well.
Fuel starvation, who else?

Great thread...I'll stay tuned. Thanks!!

Revgasm · 05-31-2012, 03:09 AM

Quote:

Originally Posted by O&G

On my 350 I took the fuses out, but you will not have ABS anymore ....LOL! Have fun!

which fuses were removed? the abls very much ruins the the pleasure of driving this car hard. I took the car to a drift event last year just to see what the car is capable of in stock form. Let's just say i did a few laps and went back to the pits. The car was damn near impossible to connect corners.

Im so used to all my other FR cars with no stability controls and assists. SO, Anyone have an official answer on how to Disengage ALL stability controls?

11-14-2011, 01:49 PM	#50 (permalink)
Skeeterbop A True Z Fanatic Join Date: Jan 2011 Location: Fort Bliss, TX Age: 40 Posts: 1,440 Drives: 2011 GM 370 base SP Rep Power: 16	It would definitely force you to learn threshold braking if that was the case. __________________ Srenity: "Yeah no rest needed to spread the love when your 20 that's for sure...."

11-14-2011, 05:08 PM	#51 (permalink)
wdkwang Track Member Join Date: Nov 2010 Location: N/A Posts: 899 Drives: slidewayz Rep Power: 21	When I wanted to do a burnout, I took out the brake lamp fuse to disable the brake override. Started the car and turned off the vdc. I don't know if it showed up before or after a burnout but the ABS light and some other light came on in the dash. I assume the ABS is disabled, maybe? Turned off the car when I was done, put the fuse back in, turned it on again, and everything was back to normal __________________ Powerhouse Amuse \| K&N Typhoon Intakes \| MotorDyne ART Pipes \| Borla Catback Exhaust \| B&M Short Shifter \| Intake Ducts \| Ichiba 25mm F/R Spacers \| Carbon Fiber Interior Vinyl Wrap \| Tints \| 10000k HIDs \| Vtak, yo!

11-15-2011, 11:01 AM	#56 (permalink)
O&G A True Z Fanatic Join Date: Nov 2010 Location: Lone Star State Age: 42 Posts: 1,212 Drives: 40th Anv. Rep Power: 22	On my 350 I took the fuses out, but you will not have ABS anymore ....LOL! Have fun! __________________ O&G's Build/Journal <---(1st lowmount single turbo treeseventy) Built Engine Thread 2011 F-250 Build/Journal

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11-14-2011, 01:47 PM	#49 (permalink)
KillerBee370 A True Z Fanatic Join Date: Mar 2009 Location: So Cal baby! Age: 51 Posts: 5,964 Drives: with passion Rep Power: 321	Obviously the ABS is still active. That would be real interesting at the track if it wasn't since I never run with the VDC on! Haha can you imagine?!

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11-14-2011, 10:39 PM	#54 (permalink)
///MSH Base Member Join Date: Jul 2011 Location: Owasso, OK Posts: 86 Drives: '11 370Z Nismo Rep Power: 14	Hey guys. I'm somewhat unknown here since i haven't posted much, but I follow many of the threads. I found this thread when i became frustrated during an AutoX this past weekend. After having already exited a hard left hand corner, starting to get power down, high in the RPM's in 1st gear, the throttle response went completely dead...I'd say i coasted 2-3 car lengths, before any throttle response came back. This very much felt like a fuel shut off rather than any sort of ABS/ABLS intervention. My fuel was half tankish, but everything i've read with regards to fuel starvation points to long-gradual RH Corners...not the case here. On a second instance, the same lack of throttle response was noted, but this time with an audible fluttering sound....like intake charge was being dumped-off. I'm not saying this is the case, just trying to paint a picture of what the flutter sounded like. In both instances, the power came back in about the time it took me to pump the pedal 3-4 times. Here's a question...if the car was under a decent lateral load (instant G-force...not sustained) would the ECU shut off the fuel for safety reasons anticipating a crash/collision???? Oh yeah, this was not the rev limiter and yes i had the traction control turned off. And with the TC turned off, my car can get just about as loose as i want it to get.

11-15-2011, 08:05 PM	#57 (permalink)
///MSH Base Member Join Date: Jul 2011 Location: Owasso, OK Posts: 86 Drives: '11 370Z Nismo Rep Power: 14	Well I guess in the grand scheme of things, fuel starvation is not the end of the world...with a little weight penalty, the problem is gone. Thanks for the input guys!